Carbureter.



No. 763,965. PATENTED JULY 5, 1904.

M. D. GOLBATH.

GARBURETER.

, APPLICATION FILED SEPT. 18, 1903.

NO MODEL. 2 SHEETS-SHEET l PATENTED JULY 5, 1904.

M. D. COLBATH.

GARBURETER.

APPLICATION FILED 8EPT.1B, 1903.

2 SHEETS-SHEET 2 N0 MODEL.

. O O 0000 O OOOOOOOOOOOO one 0 000000000 0c 0 c 0 0 O o 0 O0\Vitgesses: A (LA MONROE D. COLBATH,

Patented July 5, 1904.

PATENT OEEIcE.

OF HAMPDEN, MAINE.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 763,965, dated July 5,1904,

Application filed September 18, 1903. Serial No. 173,674. No model.)

To all w/umt it may concern:

Be it known that I, MONROE D. COLBATH, a citizen of the United States,residing at the city of Hampden, in the county of Penobscot and State ofMaine, have invented certain new and useful Improvements in Carbureters,of

which the following is a specification.

This invention relates to improvements in carbureters.

It relates particularly to machines for making gas from hydrocarbonoils. The objects of this invention are, first, to

provide an improved machine for making gas from hydrocarbon oils;second, to provide an to operate, and not likely to get out of repair.

Further objects and objects relating to structural details willdefinitely appear from the detailed description to follow.

The objects of this invention are accomplished by the devices and meansdescribed in the following specification.

out in the claims.

A structure embodying the features of this invention is clearlyillustrated in the accompanying drawings, forming a part of thisspecitication, in which Figure 1 is a detail vertical sectional viewthrough a structure embodying the features of this invention, taken on aline corresponding to line 1 1 of Fig. 2. Fig. 2 is adetail horizontalsectional view taken on a line corresponding to line 2 2 of Fig. 1. Fig.3 is a detail vertical sectional view taken on a line corresponding toline 3 3 of Fig. 2, showing the arrangement of the bafiie-plates andmeans for supporting the same. Fig. 4 is a detail vertical sectionalview taken on a line corresponding to line 4 4 of Fig. 2, showinganother view of the baffle-plates a and the means for supportingthesame. Fig. 5 is a perspective view of one of the plates ('6 in itsinverted posltlon.

In the drawings the sectional views are taken looking in the directionof the little arrows at the ends of the section-lines, and similarletters of reference refer to similar parts throughout the severalviews.

Referring to the lettered parts of the drawings, the main tank orcarbureting-chamber A is preferably mounted on a suitable standard orbase formed integral therewith, as is illustrated in Fig. 1. VV'thin thetankA is a easing A, by which the horizontally-arranged baffle-plates aare supported. As the. main carbureting-chamber A is preferably cast,the casing A, which may be readily inserted or removed therefrom, ismade'of sheet metal and forms a convenient support for the plates a.

The plates at are arranged alternately, as clearly appears in Fig. 1,and form a zigzag passage through the chamber. On the under sides of theplates. a are a plurality of downwardly-projecting perforated plates a,forming partitions across the passage. These partition-plates a areadapted to support the strips of suitable wicking material a, which reston the baffle-plates below. The outer plate a of each bafl'le plate isof slightly greater width than the plates (4, so that the plates (0 donot contact with the bathe-plates. The invention is clearly defined, andpointed As the plates a do not extend entirely across the chamber, aseries of small chambers m are formed between each pair of the plates.

Oil is' delivered onto the top baffle-plate through the supply-pipe hfrom the reservoir h. A valve H is provided for controlling the deliveryof the oil. The top baflle-plate a is provided with a series ofradiating grooves or corrugations to spread the oil. (See Fig. 2.) Thewicks n as the oil passes over the plates become saturated. Any surplusoil not held by the Wicks is collected in the bottom of the chamber.

The air is introduced into the tank or chamber A at the bottom andpasses up through the oil in the bottom of the chamber and through thesaturated wicks and becomes'suitably charged.

The air is introduced into the tank or chamber A by the pipe I). This isthe deliverypipe of the auxiliary tanks or chambers B B.

The chambers B B are connected together by the pipe B at the bottom andby the air-pipe 7/, which is connected to the top of the tank B and tothe bottom of the tank B, so that the air which is first introduced intothe tank B by the air-supply pipe Z) passes through the oil in the tankB and then through the oil in the tank B and is then delivered to themain tank A. These tanks B B are provided with a series of baffle-plates(a like or similar to those described for the chamber A.

The surplus oil which may accumulate in the main carbureting-chamber Ais delivered to the auxiliary tanks or chambers B B. This isaccomplished by means of the pipe F, which opens into the bottom of thewell A in the chamber A. The pipe F opens into the floatvalve chamber E,in which the float E, adapted to control the valve e, is arranged. Thevalve 0 controls the delivery of the oil into the delivery-pipe F, whichis connected to the chamber B. A tube f, arranged above the oil-level ofthe chamber A, connects the float-valve chamber E to the chamber A, sothat an even pressure is maintained.

When the supply of oil within the chamber A passes the predeterminedpoint, the valve (2 is operated, which draws the oil from the chamberinto the auxiliary tanks B B. As the heavier oil settles to the bottomit is drained off into the auxiliarychambers, where the air comes incontact with the same when in an uncharged condition. An air-storagetank 0 is provided, from which the air is delivered to the auxiliarytanks.

Air is supplied to the air-chamber by means of a suitable motor,(illustrated in conventional form at D, Fig. 1,) the motor beingconnected to the tank by the delivery-pipe (7!. As it is desirable thatan even pressure be maintained, I provide an open-ended cylinder 0,opening into the airstorage tank, and. a plunger or piston-head 0,having a rod 0 projecting through the end of the cylinder. The outer endof the rod 0 is connected to the arm 7: on the shaft G, which is mountedon a suitable bracket Gr on the top of the air-tank. The shaft G isprovided with a pair of arms 71 11. The arm '1." is connected by the rod7' to the oil-valve H of the oil-supply pipe 72., and the arm 41" isconnected by the rod 7" to the motor I), so that when the piston c isactuated the motor isstoppcd and the valve H is operated to cut off theoil-supply. A tension-spring 0 is provided for the piston c.

It is my purpose that the supply of oil shall be adjusted as nearly aspossible to the supply of air, so that the greater portion thereof willbe volatilized or evaporated in the chamher A. I find, however, that asthe evaporating capacity of the air varies with the varying atmosphericconditions and as the vaporizing capacity of the'diflerent grades ofoils varies greatly it is desirable to make provision for these cases,and this I accomplish in a very satisfactory manner by the structure Ihave described.

The gas is delivered from the chamber A by the service-pipe I. I providea pressureregulator I of the usual or any desired construction and alsoa mercury pressure-regulator I, located beyond the pressure-regulator Ifor the service-pipe, so that the gas is delivered under an evenpressure to the burners.

The regulators of the service-pipe and of the air-supply tank coact, sothat an even pressure is maintained within the tanks and the supply ofair and oil controlledfc. 9., the pressure-regulator I of thesupply-pipe is set at one pound, the regulator for the air-tank is setslightly above one pound, and the pressure is therefor maintained in thecarburetingchambers as near to one pound as is practicable.

When the service-pipe is opened, the pressure in thecarbureting-chambers diminishing causes the piston c to open thesupplyvalve H and start the motor. When the amount of gas taken from theservice-pipe is decreased or the pressure within the carbureting-chamberincreased from any cause, the increased pressure again acts upon thepistonhead 0, which cuts oif the supply of oil and stops the motor. Bythis arrangement I secure a structure which is practicallyself-governing and when once properly adjusted requires but littleattention.

Although, of course, the more volatile oils are more readily vaporized,I am enabled by my improved gas-machine to satisfactorily vaporize theheavier oils, such as the heavier or cheaper grades of refined oil.

Although it is desirable that the uncharged air be first brought intocontact with the heavier portion of the oils, as is accomplished by thearrangement of parts as described, satisfactory results can be securedby omitting one or both of the auxiliary carburetingchambers, although,of course, the advantages pointed out are thereby eliminated.

I have illustrated and described my improved gas-machine in the formpreferred by me on account of simplicity of structure and convenience inuse. I am aware, however, that it is capable of very great variation instructural details without departing from my invention, as will readilyappear to those skilled in the art to which my invention relates.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of a main carbureting tank or chamber A; bathe-plateshaving downwardlyprojecting partitionplates thereon horizontallyarranged therein, said partitionplates forming chambers m between saidbaffle-plates; a suitable wicking material arranged between saidpartition-plates; a well A in said chamber A; auxiliary carburetingtanks or chambers B B suitably connected together at the bottom; adelivery-pipe for said chamber B connected thereto near the top anddelivering into said chamber B near the bottom thereof; a delivery-pipefor said chamber B delivering into the bottom of said chamber A;baffle-plates arranged in said auxa cylinder opening into saidair-storage tank;

a piston therefor adapted to be operated by the pressure within saidtank; suitable con nections from said piston to said motor whereby saidmotor is controlled; an oil-reservoir; a valve for controlling thedelivery of oil therefrom; connections from said valve to said piston,whereby said valve is controlled; a float-valve chamber connected tosaid well in said main carbureting-chamber; a deliverypipe connectingsaid float-valve chamber with said auxiliary chamber B; afloat-controlled valve for said delivery-pipe; a gas servicepipe for thesaid chamber A; and a suitable pressure-regulator therefor, all coactingfor the purpose specified.

2. In a gas-machine, the combination'of a main carbureting tank orchamber A; baflieplates having downwardly-projecting partition platesthereon horizontally arranged therein, said partition-plates formingchambers on between said baflie-plates; a suitable wicking materialarranged between said partition-plates; a well A in said chamber A;

auxiliary carbureting tanks or chambers B B suitably connected togetherat the bottom; a

delivery-pipe for said chamber B connected thereto near the top anddelivering into said chamber B near'the bottom thereof; a de livery-pipefor said chamber B delivering into the bottom of said chamber A; anairstorage tank connected to said auxiliary chamber B; a suitable motoradapted to supply air to said storage-tank; a cylinder opening into saidair-storage tank; a piston therefor adapted to be operated by thepressure within said tank; suitable connections from said piston to saidmotor whereby said motor is controlled; an oil-reservoir; a valve forcontrolling the delivery of oil therefrom; connections from said valveto said piston, whereby said valve is controlled; a float-valve chamberconnected to said well in said main carbureting-chamber; a delivery-pipeconnecting said floatvalve chamber with said auxiliary chamber B; afloat-controlled valve for said deliverypipe; a gas service-pipefor thesaid chamber A; and a suitable pressure-regulator therefor, all coactingfor the purpose specified.

3. The combination of a main carbureting tank or chamber A;baffle-plates a having downward ly-projecting partition-plates thereonhorizontally arranged therein; a suitable wicklng material arrangedbetween said partition-plates; a well A in said chamber A; auxiliarycarbureting tanks or chambers B B. suitably connected together at thebottom; a delivery-pipe for said chamber B connected thereto near thetop and delivering into said chamber B near the bottom thereof; adelivery-pipe for said chamber B delivering into the bottom of saidchamber A; baffle-plates arranged in said auxiliarychambers; anairstorage tank; a delivery-pipe for said air-storage tank connected tosaid auxiliary chamber B delivering beneath the baffle-plates therein; asuitable motor adapted to supply air to said storage-tank; a cylinderopening into said airstorage tank; a piston therefor adapted to beoperated by the pressure within said tank;

suitable connections from said piston to said motor whereby said motoris controlled; an oil-reservoir; a valve for controlling the delivery ofoil therefrom; connections from said valve to said piston, whereby saidvalve is controlled; a float-valve chamber connected to said well insaid main carbureting-chamber; a delivery-pipe connecting saidfloat-valve chamber with said auxiliary chamber B; a float-controlledvalve for said delivery-pipe;

ery-pipe for said chamber B delivering into the bottom of said chamberA; an air-storage tank; a delivery-pipe for said air-storage tankconnected to said auxiliary chamber B; a suitable motor adapted tosupply air to said stora gas-delivery pipe for the said chamber A;

age-tank; a cylinder opening into said airstorage tank; a pistontherefor adapted to be operated by the. pressure within said tank;suitable connections from said piston to said motor whereby said motoris controlled; an oil-reservoir; a valve for controlling the de liveryof oil therefrom; connections from said valve to said piston, wherebysaid valve is controlled; a float-valve chamber connected to said'wellin said main carbureting-chamber;

a delivery-pipe connecting said valve-chamber with said auxiliarychamber B; a float-controlled valve for said delivery-pipe; agas-delivery pipe for said chamber A; and a suit able pressure-regulatortherefor, all coacting for the purpose specified.

5. The combination of a main carbureting tank or chamber; a well A insaid chamber A; auxiliary carbureting tanks or chambers B B suitablyconnected together at the bottom; a

delivery-pipe for said chamberB connected thereto near the top anddelivering into said chamber B near the bottom thereof; a delivery-pipefor said chamber B delivering into the bottom of said chamber A; anair-storage tank; a delivery-pipe for said air storage tank connected tosaid auxiliary chamber B; a suitable motor adapted to supply air to saidstorage-tank; a cylinder opening into said airstorage tank; a pistontherefor adapted to be operated by the pressure within said tank;suitable connections from said piston to said motor whereby said motoris controlled; an oil-reservoir; a valve for controlling the delivery ofoil therefrom; connections from said valve to said piston whereby saidvalve is controlled; a float-valve chamber connected to said well insaid main carbureting-chamber; a delivery-pipe connecting saidfloat-valve chamber with said auxiliary chamber B; a float-controlledvalve for said delivery-pipe; a gas-delivery pipe for the said chamberA; and a suitable pressure-regulator, all coacting for the purposespecified.

6. The combination of a main carbureting tank or chamber; baflie-plateshaving downwardly projecting partition plates thereon horizontallyarranged therein, said partitionplates forming chambers on between saidbaffle-plates; a suitable wicking material arranged between saidpartition-plates; an auxiliary carbureting tank or chamber; adelivery-pipe for said auxiliary chamber, delivering into the bottom ofsaid chamber A; baifieplates (1, arranged in said auxiliary chamber; anair-storage tank; a delivery-pipe for said air-storage tank connected tosaid auxiliary chamber delivering beneath the baffle-plates therein; asuitable motor adapted to supply air to said storage-tank; a cylinderopening into said air-storage tank; a piston therefor adapted to beoperated by the pressure within said tank; suitable connections fromsaid piston to said motor whereby said motor is controlled; anoil-reservoir; a valve for controlling the delivery of oil therefrom;connections from said valve to said piston, whereby said valve iscontrolled; a delivery-pipe connecting said auxiliary chamber with saidmain carburcting-chamber; a float-controlled valve for controlling saiddelivery-pipe; a gas-delivery pipe for the said chamber A; and asuitable pressure-regulator therefor, all coacting for the purposespecified.

7. The combination of a main carbureting tank or chamber; baflie-plateshaving downwardly-projecting partition-plates thereon horizontallyarranged therein, said partitionplates forming chambers on between saidbaffle-plates; a suitable wicking material arranged between saidpartition-plates; an auxiliary carlmreting tank or chamber; adelivery-pipe for said auxiliary chamber delivering into the bottom ofsaid chamber A; an air-storage tank; a delivery-pipe for said airstoragetank connected to said auxiliary chamber; a suitable motor adapted tosupply air to said storage-tank; a cylinder opening into saidair-storage tank; a piston therefor adapted to be operated by thepressure within said tank; suitable connections from said piston to saidmotor whereby said motor is controlled; an oil-reservoir; a valve forcontrolling the delivery of oil therefrom; connections from said valveto said piston, whereby said valve is controlled; a delivery-pipeconnecting said main carbureting-chamber with said auxiliary chamber; afloat-controlled valve for the said delivery-pipe; a gas-delivery pipefor the said chamber A; and a suitable pressure-regulator therefor, allcoacting for the purpose specified.

8. The combination of a main carburetingchamber; baffle-plates havingdownwardlyprojecting partition-plates thereon horizontally arrangedtherein; a suitable wicking material arranged between saidpartition-plates; an auxiliary carbureting tank or chamber; adelivery-pipe for said auxiliary tank or chamber, delivering into thebottom of said chamber A; baflle-plates a arranged in said auxiliarychamber; an air-storage tank; a deliverypipe for said air-storage tankconnected to said auxiliary chamber delivering beneath the baffle-platestherein; a suitable motor adapted to supply air to said storage-tank; acylinder opening into said air-storage tank; a piston therefor adaptedto be operated by the pres sure within said air-storage tank; suitableconnections from said piston to said motor whereby said motor iscontrolled; an oil-reservoir; a valve for controlling the delivery ofoil therefrom; connections from said valve to said piston, whereby saidvalve is controlled; a delivery-pipe connecting said maincarbureting-chamber with said auxiliary chamber; a float-controlledvalve for the said deliverypipe; a gas-delivery pipe for the saidchamber A; and a suitable pressure-regulator therefor, all coacting forthe purpose specified.

9. The combination of main carbureting tank or chamber; baffle-plateshaving downwardly-projecting partition-plates thereon horizontallyarranged therein; a suitable wicking material arranged between saidpartitionplates; an auxiliary carburetingtank or chamber; adelivery-pipe for said auxiliary chamber delivering into the bottom ofsaid chamher A; an air-storage tank; a delivery-pipe for the saidstorage-tank connected to said auxiliary chamber; a suitable motoradapted to supply air to said storage-tank; a cylinder opening into saidair-storage tank; a piston therefor adapted to be operated by thepressure within said air-storage tank; suitable connections from saidpiston to said motor whereby said motor is controlled; an oil-reservoir;a valve for controlling the delivery of oil therefrom; connections fromsaid valve to said piston, whereby said valve is controlled; adelivchamber with said auxiliary chamber; a floatcontrolled valve forsaid delivery-pipe; a gasdelivery pipe for the said chamber A; and asuitable pressure-regulator therefor, all coacting for the purposespecified.

10. The combination of a main carbureting tank or chamber A; anauxiliary carbureting tank or chamber; a delivery-pipe for saidauxiliary chamber delivering into the bottom of the said chamber A; anair-storage tank; a delivery-pipe for said air-storage tank connected tosaid auxiliary chamber; a suitable motor adapted to supply air to saidstorage-tank; a cylinder opening into saidair-storage tank; a pistontherefor adapted to be operated by the pressure within said tank;suitable connections from said piston to said motor whereby said motoris controlled; an'oil-reservoir;

avalve for controlling the delivery of oil therefrom; connections fromsaid valve to said piston, whereby said valve is controlled; adelivery-pipe connecting said main carbureting-chamber with saidauxiliary chamber; a float-controlled valve for said delivery-pipe; agas-dclivery pipe for the said chamber A; and a suitablepressure-regulator therefor, all coacting for the purpose specified.

11. The combination of a main carbureting tank or chamber A;baffle-plates at having downwardly-projecting perforated partitionplates(0" thereon horizontally arranged therein, said partition-plates formingchambers m between said ba'fiie-plates; asuitable wicking material as aarranged between said partitionplates (0; an auxiliary carbureting tankor chamber; an air-delivery pipe for said auxiliary chamber, deliveringinto the bottom of said main chamber; bafiie-platesa arranged in saidauxiliary chamber; a float-valve chamber connected to said maincarbureting-chamber A; a delivery-pipe connecting said float-valvechamber with said auxiliary chamber; and a float-controlled valve forsaid delivery-pipe, for the purpose specified.

12. The combination of a main carbureting tank or chamber A;baflie-plates a having downwardly-projectin g partition-plates thereonhorizontally arranged therein,'said partition-plates forming chambers onbetween said baffle-plates; a suitable wicking material as 92 arrangedbetween said partition-plates; an auxiliary carbureting tank or chamber;an airdelivery pipe for said auxiliary chamber, delivering into thebottom of said main chamber; baflle-platesa arranged in said auxiliarychamber; a float-valve chamber connected to said maincarbureting-chamber A; a deliverypipe connecting said float-valvechamber with said auxiliary chamber; and a float-controlled valve forsaid delivery-pipe, for the purpose specified. I

13. The combination of a main carbureting tank or chamber A;bafiie-plates (0 having downwardly-projecting perforated partitionplatesat" thereon horizon tally arranged there- 1n, said partition-platesforming chambers m between said bafiie-plates; a suitable wickingmaterial as a arranged between said partitionplates; an auxiliarycarbureting tank or chamber; an air-delivery pipe for said auxiliarychamber, delivering intothe bottom of said main chamber; a float-valvechamber connected to said main carbureting-chamber A; a delivery-pipeconnecting said float-valve chamber with said auxiliary chamber; and afioatcontrolled valve for said delivery-pipe, for the purpose specified.

14:. The combination of a main carbureting tank or chamber A;bafiie-plates (0' having downwardly-projectingpartition-plates thereonhorizontally arranged therein, said partition-plates forming chambers mbetween said bafiie-plates; a suitable wicking material as n arrangedbetween said partition-plates; an auxiliary carbureting tank or chamber;an air-delivery pipe for said auxiliary chamber,v delivering into thebottom of said main chamber; a float-valve chamber connected to saidmain carbureting-chamber A; a delivery-pipe connecting said float-valvechamber with said auxiliary chamber; and a float -controlled valve forsaid delivery-pipe, for the purpose specified.

15. The combination of a main carbureting tank or chamber A;.baflle-plates a having downwardly-projecting perforated partitionplatesdthereon horizontally arranged therein; a suitable wicking material as narranged between said partition-plates; an auxiliary carbureting tank orchamber; an air-delivery pipe for said auxiliary chamber, deliveringinto the bottom of said main chamber; baf fie-plates (0 arranged in saidauxiliary chamber; a float-valve chamber connected to said maincarbureting-chamber A; a delivery-pipe connecting saidfioat-valvechamber with said auxiliary chamber; and a float controlled valve forthe said delivery-pipe, for the purpose specified.

16. The combination of a main carbureting tank or chamber A;baflie-plates a. having downwardly-projecting partition-plates thereonhorizontally arranged therein; a suitable wicking material as orarranged between said partition-plates; an auxiliary carbureting tank orchamber; an air-delivery pipe for said auxiliary chamber, deliveringinto the bottom of said main chamber; bafiie-plates (0 arranged in saidauxiliary chamber; a float-valve chamber connected to said maincarbureting-chamber A; a delivery-pipe connecting said floatvalvechamber with said auxiliary chamber; and a float-controlled valve forthe said delivery-pipe, for the purpose specified.

17. The combination of a main carbureting tank or chamber A;baffle-plates (6 having downWardly-projecting perforated partitionplates(0 thereon horizontally arranged therein; a suitable. wicking materialas n arranged between said partition-plates; an auxiliary carburetingtank or chamber; an air-delivery pipe for said auxiliary chamberdelivering into the bottom of said main chamber; a float-valve chamberconnected to said main carbureting-chamber A; a delivery-pipe connectingsaid float-valve chamber with said auxiliary chamber; and afloatcontrolled valve for said delivery-pipe, for the purpose specified.

18. The combination of a main carbureting tank or chamber A;baflie-plates (4 having downwardlyprojecting partition-plates thereonhorizontally arranged therein; a suitable wicking material arrangedbetween said partition-plates; an auxiliary carbureting tank or chamber;an air-delivery pipe for said auxiliary chamber delivering into thebottom of said main chamber; a floatvalve chamber connected to said maincarbureting-chamber A; a deliverypipe connecting said float-valvechamber with said auxiliary chamber; and a float-controlled valve forsaid delivery-pipe, for the purpose specified.

19. The combination of a main carbureting tank or chamber; an auxiliarycarbureting tank or chamber; an air or gas delivery pipe for saidauxiliary chamber delivering into the bottom of said main chamber; afloat-valve chamber connected to said main carburetingchamber; adelivery pipe connecting said float-valve chamber with said auxiliarychamber; and a float-controlled valve for said delivery-pipe, for thepurpose specified.

20. The combination of a main carbureting tank or chamber; an auxiliarycarbureting tank or chamber; an air or gas delivery pipe connecting saidauxiliary chamber to said main carbureting-chamber; an oil-delivery pipeconnecting said main earbureting-chamher to said auxiliary cham ber; anda float-valve therefor, for the purpose specified.

21. The combination of a chamber; a plurality of bafiie-plates havingdownwardly-projecting perforated partition-plates a thereon horizontallyarranged therein, said partitionplates forming chambers in between saidbaffle-plates; strips of suitable wicking material arranged between saidplates; means for delivering oil to the top baflie-plate; and means fordelivering air to said chamber beneath the lower baffle-plate, for thepurpose specified.

22. The combination of a chamber; a plurality of bafiie-plateshorizontally arranged therein; downwardly projecting partitionplates onsaid baflie-plates extending from side to side thereof, saidpartition-plates forming chambers 112/ between said baffle-plates;strips of suitable wicking material arranged between said plates; meansfor delivering oil to the top baffle-plate; and means for delivering airto said chamber beneath the lower bafHe-plate, for the purposespecified.

23. The combination of a chamber; a plurality of baffle-plates havingdownwardly-projecting perforated partition-plates a thereon horizontallyarranged therein; strips of suitable wicking material arranged betweensaid partition-plates; means for delivering oil to the top baflie-plate;and means for delivering air to said chamber beneath the lowerbaffleplate, for the purpose specified.

24:. The combination of a chamber; a plurality of baflie-plateshorizontally arranged therein; downwardlyprojecting partitionplates onsaid baffle-plates extending from side to side thereof; strips ofsuitable wicking material arranged between said partitiom plates andresting on the top of the plate below; means fordelivering oil to thetop baflie-plate; and means for delivering air to said chamber beneaththe lower baflie-plate, for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presenceof two witnesses.

MONROE l). COLBATH. [n s] Vitnesses:

A. IRENE AnAMs, OTIS A. EARL.

